as far as set and forget.. almost any smoker can be set and forget, especially if you add a blower and a control system.
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i started off on a gas grill (the original weber genesis.. that thing is at least as old as i am, no joke) with only one burner on for indirect heat and a woodchip pan above that. it worked, but babysitting it sucked. i was about to mod in a servo valve and control system, but then i realized that was stupid, and i should just buy or make an actual smoker.
there's no such thing as something that grills and smokes well.. unless it's expensive af.
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then i
made a UDS mounted on a shopping cart with a control system. by the time i made it, there were several commercially available control systems for bbq, and i decided that it was nice enough and for a low enough price that DIY controls were no longer appealing. not worth my time to make something of comparable quality. i got one from bbqguru. now several years later, the number of products available has probably tripled. even thermoworks makes one now lol.
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since you can slap a controller on almost anything, you have to decide on the style of smoker you want.
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start with choice of fuel:
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stick burner... more traditional, possibly best flavor if done right. it's the most work though even with a controller. need to maintain coals and feed in wood as needed. there are some attempts at making this a little easier.. look atÂ
https://kbq.us/product/kbq-c-60-pit/
since you're talking about feeding the beast, i assume you were working a stick burner of some kind lol.
i'd love to have a nice, insulated, cabinet-style stick burner someday.Â
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charcoal... less work than stick burner, but the taste is not the same. in case it wasn't clear, my UDS burns charcoal (with chunks of wood mixed in for flavor).
a buddy of mine just got the 22" WSM, and i got to use it with him a couple times. it's nice. holds temp decently well without a controller if the weather isn't f'd up, but he plans to add one eventually.
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pellets... i've never used one, so i won't shit talk it. honestly i'd love to borrow one to try. people love them because they're very easy to use, but word on the street is the smoke flavor is more subtle.
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once you pick a fuel, then familiarize yourself with the types of designs available and their pros and cons in terms of fuel efficiency, evenness of temperature across the cooking surfaces, food capacity.. do you want a cabinet, offset, ...